stringpair.py

n = int(input())
inputs = list(map(int, input().split()))
from itertools import combinations

vowels = ['a', 'e', 'i', 'o', 'u']

def getStringValue(num):
    d = { 0 : 'zero', 1 : 'one', 2 : 'two', 3 : 'three', 4 : 'four', 5 : 'five',
          6 : 'six', 7 : 'seven', 8 : 'eight', 9 : 'nine', 10 : 'ten',
          11 : 'eleven', 12 : 'twelve', 13 : 'thirteen', 14 : 'fourteen',
          15 : 'fifteen', 16 : 'sixteen', 17 : 'seventeen', 18 : 'eighteen',
          19 : 'nineteen', 20 : 'twenty',
          30 : 'thirty', 40 : 'forty', 50 : 'fifty', 60 : 'sixty',
          70 : 'seventy', 80 : 'eighty', 90 : 'ninety' }

    assert(0 <= num)
    if (num < 20):
        return d[num]
    if (num < 100):
        if num % 10 == 0: return d[num]
        else: return d[num // 10 * 10] + '-' + d[num % 10]
    if (num == 100):
        return 'hundred'


count = 0
for i in inputs:
    value = getStringValue(i)
    listValue = [k for k in value]
    for e in listValue:
        if e in vowels:
            count += 1

combination = sum([list(map(list, combinations(inputs, i))) for i in range(len(inputs) + 1)], [])

if count >= 100:
    print("greater 100")
else:
    total_count = 0
    for i in combination:
        if sum(i) == count and len(i) == 2:
            total_count += 1

    print(getStringValue(total_count))